Yearlong pliysical activity and health-related quality of life in older Japanese adults : new guidelines for exercise

背景资料：我们假设，在一个健康的老年人群中，临床相关的健康相关的生活质量（HRQOL）评分的增加将与更大的强度和总体积的日常体力activity.Methods：这些假设进行了测试，在一个队列的74名男性和109名女性志愿者从日本中之城镇。年龄范围为65-85岁;协方差分析根据年龄对HRQOL的影响进行了调整。一年来，每天都使用一种特别适合的加速度计对身体活动进行定量测量，该加速度计区分了11种身体活动强度。HRQOL进行了评估，由日本适应的医疗成果研究简表（SF-36）questionnaire.Results：结果证实了我们的假设; HRQOL是更大的四分位数的受试者满足最低标准的习惯性体力活动：在强度>3代谢当量（MET）的情况下，男性每天5511步或更多步和/或每天至少12.9分钟，在强度>3 MET时，女性每天>4552步和/或>15.0分钟。我们的结论是，HRQOL得分较高的老年人谁满足最低标准的习惯性体力活动，并应鼓励老年人达到这样的标准，即使它们的大部分活动仅处于低或中等强度。

Background : We hypothesized that in a healthy elderly population, a clinically relevant increase in health-related quality of life(HRQOL) score would be positively associated with a greater intensity and total volume of daily physical activity.Methods : These hypotheses were tested in a cohort of 74 male and 109 female volunteers from the town of Nakanojo, Japan. Ages ranged from 65-85 years ; analyses of covariance adjusted for the effects of age upon HRQOL. Quantitative measurements of physical activity were obtained daily for one year, using a specially adapted accelerometer that distinguished 11 intensities of physical activity. HRQOL was assessed by a Japanese adaptation of the Medical Outcomes Study Short Form (SF-36) questionnaire.Results : The results confirmed our hypotheses ; HRQOL was greater in the quartile of subjects meeting minimum standards of habitual physical activity : in men 5511 or more steps per day and/or at least 12.9 min per day at an intensity >3 metabolic equivalents(METs), and in women >4552 steps per day and/or >15.0 min per day at an intensity >3 METs.Conclusions : We conclude that HRQOL scores are higher in elderly individuals who meet minimum standards of habitual physical activity, and that the elderly should be encouraged to meet such standards, even if much of their activity is at only a low or moderate intensity.